Convection is when warm air rises and takes heat with it; eventually it cools and sinks. Radiation is when sunlight travels through space without the aid of fluids or solids. A. True. B. False.

What is the chemical formila for monosaccharides?

In an experiment plants are fed once daily for one week. There are four plants the first is given oil, the second one vinegar, third one water and fourth one sugar. What is the manipulated variable?

If barium (metal) has two valence electrons while chlorine (nonmetal) has seven, how many barium atoms are needed to form an ionic bond with chlorine?

Which formula id correctly paired with its name? A. MgSO↓ = magnesium chlorine B. FeO = iron (|||) oxide C. K↓2O = Phosphorus dioxide D. CuCI↓2 = copper (||) chloride

Which statement is true for any electrochemical cell? (1) Oxidation occurs at the anode, only. (2) Reduction occurs at the anode, only. (3) Oxidation occurs at both the anode and the cathode. (4) Reduction occurs at both the anode and the cathode.

Boron has an average mass of 10.81. One isotope of boron has a mass of 10.012938 and a relative abundance of 19.80 percent. The other isotope has a relative abundance of 80.20 percent. What is the mass of the two isotopes?

What type of radiation is most likely to damage DNA? A. ionizing B. non-ionizing

Water vapor cools and comes together to form a cloud. This is an example of what change in state? condensation evaporation melting

Which group of the periodic table does this element most likely belong to

What is the ph of a 7.5*10^-3 m H + solution